Blind-fastener.



H. W. GTTO.

BLIND PASTENER. APPLIoATloN FILED 0011.15, 1910.

978,479, Patented Dec. 13, 1910.

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4 526% Q a f ff 7 /f e y @y @ad M12/rm HERBERT W. OTTO, OF MERIDEN,CONNECTICUT.

BLIND-FASTENER.

Specication of Letters Patent.

Patented Dec. 13, 1910.

Application led October 15, 1910. Serial No. 587,242.

To all whom it may concern.'

' Be it known that I, HERBERT W. O'r'ro, a citizen of the United States,residing at Meriden, in the county of New Haven and State ofConnecticut, have invented a new and useful Improvement inBlind-Fasteners; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a side View partially in section of a blind fastener,embodying my invention and shown as mounted in a blind and engaged witha vertically arranged eye. Fig. 2, an end viewof the same. Fig. 3, abroken view showing one end of the fastener engaged with a horizontallyarranged eye. Fig. 4, sectional view on line ca -b of Fig. 1.

This invention relates to an improvement in blind or shutter fastenersof the class which provide for holding the blinds in an open or closedposition.

The object of the invention is to provide a secure fastening which maybe easily applied and convenient of operation and the invention consistsin the construction hereinafter described and particularly recited inthe claim.

In carrying out my invention I employ a cylindrical body or casing 2corresponding in length to the thickness of the blind or shutter, 3 towhich it is to be attached. At the bottom of the casing at each end isan outwardly projecting arm 4i, 5, preferably formed integral with thecasing which is of sheet metal. At the sides of the arms are ears 6, 7to support pintles 8 which also pass through ears 9,10 extendingdownward from latches 11, 12, formed at their outer ends with downwardlyturned hooks 13 which normally bear against the upper surfaces of theouter ends of the arms 4, 5. The inner ends of the latches 11, 12, areconnected together by a spring plate 14 which extends through the casingthan which it is longer and is riveted to the respective ends of thelatches. Preferably the ends of the casing are closed above the springby end walls 15, 16. The fasteners are used in connection with the usualeyes or staples 17 which are located, one on the sill for engagementwhen the blind is closed and one on the building for engagement when theblind is open. In attaching the fasteninfrdevice a round hole is boredthrough the r:blind or shutter and the fastener passed through it so asto lit tightly and so that the arms will project at opposite sides.Downward pressure upon the spring will lift the outer ends of thelatches so that either latch may be opened for engagement with ordisengagement from the respective eyes or staples with which they coact.

I claim- 1. A blind fastener, comprising a casing an arm projecting`from opposite ends thereof, a latch hinged to each arm and a springconnecting the inner ends of the said latches.

2. A blind fastener, comprising a cylindrical casing an arm projectingfrom opposite ends thereof, a latch hinged` to each arm and a sprinffconnecting the inner ends of the said latc es. I

3. A blind fastener, comprising a casing an arm projecting from oppositeends thereof, said arms formed with upwardly turned ears, latches havingdownwardly turned ears, a pintle extending through said ears wherebysaid latches are hinged to said arms and a spring connecting the innerends -of said latches.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

HERBERT WV? OTTO.

Witnesses:

l L. M. KooRnMAN,

THOMAS KOOREMAN.

